एक पाइप प्रवाह में 4000 से अधिक रेनॉल्ड्स संख्या (Reynolds number) किस प्रकार के प्रवाह को दर्शाती है?

The ratio of the specific weight of a liquid to the specific weight of a standard fluid is known as:

The magnitude of the buoyant force depends on the _____________.

In incompressible fluid dynamics, the continuity equation is ∂u/∂x + ∂v/∂y + ∂w/∂z = 0. What physical law does this equation represent?